Study on Dynamic Simulation of 4-Bundle Ice-Coated Conductor Galloping Based on 3-D Model

Abstract:

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Galloping of power transmission lines is a low frequency self-oscillation with large amplitude. The aerodynamic effect on each sub-conductor of 4-bundle conductor is different due to wake-flow-influence. In order to explore the reasons leading to galloping, a 3-D model for power transmission line is built. A two-node quadratic beam element in 3-D and a structure mass element are applied to establish the finite element model of iced 4-bundle conductor in ANSYS software. Then dynamic transient response calculations are made on this model. According to the results, difference in vibration of sub-conductors and frequency coupling of torsional and transverse vibration can be confirmed. The simulation results illustrate the wake-flow-influence effect and the coupled motions effect on galloping of 4-bundle conductor.

Info:

Periodical:

Edited by:

Paul P. Lin and Chunliang Zhang

Pages:

474-477

DOI:

10.4028/www.scientific.net/AMM.105-107.474

Citation:

S. J. Wu et al., "Study on Dynamic Simulation of 4-Bundle Ice-Coated Conductor Galloping Based on 3-D Model", Applied Mechanics and Materials, Vols. 105-107, pp. 474-477, 2012

Online since:

September 2011

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$35.00

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